Thanks for the thoughts on sanding techniques.Frank, using a surface
to “brace” the disc against when cutting it down sure helps.I have
found the smaller diameter especially useful for blending during
retipping, the plastic 3M ultrafine is my choice.
An extremely handy tip I learned from Jeff Mathews,designer and
innovator of the AllSet system, is to charge the paper side with
polishing compound. First, with a dressing stone or another disc
grind away any grit left on top, rough up the paper and charge with
tripoli. You now have a mini flat lap. This works great for
finishing out ring sizing,minimizes polishing drag issues with
solder seams. Note: use with the paper side down;be careful of “blow
outs” as the sanding side is still there;always wear eye protection.
I have not seen a felt “sanding disc” be have thought some thing as
such would be useful.Are they very flexible?
Another thought regarding use at the wax bench.Check out the slicing
blade or disc on a food processor.Might a plastic version of that
principal work well?